Woodworking-machine.



L HALTERBECK.

WOODWORKING MACHINE.

APPLICATION man 1AN.21,19|1. L.

RENEWED DEC. 15,1916.

Patented July 17 I HALTERBECK wooDwoRKlNG MACHINE.

APPLICATION FILED IAN.27, 1911. RENEWED DEC. 15| 9I6. I Ulb Patented July 17, 1917.

1 4 SHEETS-SHEET 2 *wm/Leones:

Patented July 17, 1917.

4 SHEETS-SHEET 3- LQSLUl,

J. HALTERBECK.

WOODWORKING MACHINE. APPLICA-HON` FILED 1AN.2| 191|. RENEWED DEC. 15,1916. Ll

Patented J uly 17', 1917.

4 SHEETS-SHEET 4 WLM/Lc awo z 'llhll JOI-IN HALTERBECK, F NEW YORK, N. Y., ASSIGNOR TO GOITFRIED PIEL, 0F NE YORK, N. Y.

WCODWORKING-MACHINE.

Specification of Letters Patent.

Patented July 17, 1917.

Application filed January 27, 1911, Serial No. 605,022. Renewed December 15, 1916. Serial No. 137,267.

, also to produce curved or irregular shapes with practically mathematical accuracy. The machine may be employed for number of purposes for which wood working machines of ordinary construction are now used, and also may be adapted for many purposes other than the working of wood, such as working metal, stone or other substances or compositions merely by changing the tool or cutting edge of the machine.

The particular objects of the invention will be more fully set `forth in the following description of one form of machine embodying my invention which consists in the new and novel features of construction and combinations of parts hereinafter set forth and claimed.

In the accompanying drawings:

Figure 1 represents a side elevation of a wood working machine embodying my in* vention.

` Fig. 2 represents an end view of the same.

Fig. 3 represents a vertical elevation of a portion of the tool supporting and actuating means, the swing plate being shown in dotted lines.

Fig. Ll represents a plan view of a portion of the machine.

Fig. 5"represents a side elevation of the i machine adapted for use with a different form of tool.

Fig. 6 represents an enlarged detail view of the tool supporting and separating mechanism shown in Fig. 5.

Fig. 7 represents an end view of the construction shown in Fig. 6.

The frame 1 comprises the standard 2 and a post or pillar-3 preferably formed integral with the base plate l. A table 5 is adjustable vertically lupon the; post by means of the threaded shaft 6 operated by a hand wheel 7 and engages with and is guided Vby a suitable guide 8 formed upon the standard 2. The standard is provided with a bracket 8a which may be detachably secured thereto and which is provided with suitable bearings for the mainror driving shaft 9. Suitable pulleys 10a, 10b, 10C and 10d are secured upon the driving shaft, the pulley 1011 being the main or driving pulley and the pulley 10b being an idler. rlhe pulley 10d is connected by any suitable means as the belt 11 with a pulley 12 upon a countershaft 14 mounted in bearings provided in an arm or extension 15. The pulley 10Q is keyed to the main shaft and is operatively connected with the tool operating mechanism as hereinafter described.

The cutting tool 17 is secured to a spindle 18 which is rotatably mountedon a movable support comprising the plate 19 and the guide bar 20. The plate 19 is provided with a suitable slot or recess 21 which engages with the guide bar and is movable thereon. The sides 19Ll and 19b of the plate are preferably perpendicular to each other and the tool is supported at the apex of the angle formed bythe sides. The plate is supported in slots 2l formed in suitable bolts 25 swiv* eled in arms 26 formed integral with threaded sleeves 27. The said sleeves are threaded right and left hand and are engaged by a rotatable shaft 28 which is Operated i'n any suitable manner as by a hand wheel 29, or by a foot lever 30 and a pawl and ratchet connection 31, through the bev eled gears 32- The arms 26 are each provided with a `stop or gage 'adapted to rest upon the top of the work. Y

The guide bar 20 is pivoted on or near the horizontal end of a shaft 34 having guide plates or wings 35 secured thereto movable in guides 36 formed integral with the frame. The shaft is raised and lowered by any suitable means as the gear 37 which is normally meshed by a corresponding gear 38 keyed to a vertical shaft 39 having suitable bearings in the frame, which is operated from the horizontal shaft 28 by the beveled gears 40.

In order to produce rocking or swinging movement of the cutting tool the guide bar 20 is connected through suitable means as therod 41 with a rotating crank plate 42. Said crank plate is keyed upon a shaft All journaled in the floating bearings l5 and having step pulleys 4.6 keyed to the opposite end thereof.l Said pulleys are driven by the belts from the step driving pulleys 46a upon the counter shaft 14.

The bearing or journal boX 45 is movable in guides 48 formed in the frame and is operatively connected with a vertical shaft 49 which is threaded to mesh with the threaded 'hub of a beveled gear 50. f Said gear is in mesh'with a similar gear 51which is mounted upon the horizontal shaft 52 rotatable in bearings provided'in the frame and driven a rod 59 which is pivoted to an extension of theplate 19. Said rod preferably comprises a plunger 60 which is directly secured to the plate and suitable compensating movement is permitted between the rod andl said plunger by means of a spring 61. Suitable idlers 62 for the belt are provided upon the plate. As shown in Figs. 5 to 7, the spindle may have an independent'vertical movement by being mounted in a bracket 64 which is secured to the plate 19 in any suitable manner as by the screws 65. Said bracket is profrvided with laterally extending arms 66 which form a bearing for a rack 67 operatively connected with the spindle by a link 68 engaging with a grooved collar 69 keyed tothe spindle. A pinion 70 is rotatable on anv armor extension 71 of the bracket and meshesfwith saidrack being operated by a suitable handle 72. The spindle is provided with agroove 74 toreceive the collar pin 75 or other suitable means whereby it may be driven. by the driving pulley 56. A clamp 76 operated by a handle'77 provides means forrsecuring the spindle in adjusted position with relation to the swinging plate 19.

' It will be seen that the supporting points for'the swinging or rocking plate 19 are so positioned with respect to the cutting tool and to the pivot v34aN that the cutting tool will describe a true semi-circle whatever the position kof the plate. If desired, however, the bearing edges of the plate may be arranged at some angle other than 90 with relation to each other, and may be provided'with an Y fico,

irregularshape in which event a slightly different path will be describel bythe cutting tool, dependingl upon the angle formed Y by the bearing edges or the shape thereof.

g1 In-operati'on the guides or stops 33 are seated upon the face of the work and the center ofthe semicircle will be truly formed regardless of the size of the circle described. Preferably the recesses are roughened out in advance, but this is not necessary. As thc work progresses the shaft 28 is operated, thus controlling the bearing arms 26 and increasing the radius of the cut made by the tool, which, at all times, travels in the arc of a circle. As soon as the work is fed up to the guide rollers and the swinging plate is set to the desired radius the tool will make a cut at each motion of the plate, and the work is fed ahead at each oscillation.

Whenever the bearing arms 26 for the plate 19 are moved the bearings for the crank disk 42 are correspondingly moved through the shaft 49 and its connection, which causes the throw or swing of the cutting tool to remain constant in all positions, although the radius of the cut may change. The rate of oscillation does not affect the path of the cut and can be regulated to the kind of material being operated upon by the step up pulleys 46 and 46.

The shaft 28 may be operated by the hand wheel 29 or by the foot lever 30 and it not only moves the supporting arms 26 a corre sponding distance toward and away from the aXis of the spindle, but also, simultaneously raises and lowers the shaft 34 and bearing 45 by means of the oears 40, 37, 38, 54, 51 and 50. Consequenty all of these movements are simultaneously operated by turning the hand wheel 29, and the proper relation and relative position of the parts is constantly maintained. The rotation of the cutting tool is maintained at uniform speed in every position of the swinging plate, this being accomplished by means of the driving pulley mounted upon the swinging arm 58 which is maintained at the proper relative distance from the plate and at the same time the belt is tightened by the spring-pressed plunger 60.

When it is desired to use the machine for other purposes, the crank plate 42 may be locked into position by any suitable means as the set screw 78 and the belt disconnected from the step up pulleys. This will hold the tool in its adjusted position either perpendicular or at an angle to the work. Vertical movement of the tool can be effected by means of the rack and pinion actuated by the handle 72.

By means of this construction the same machine, employing a single cutting tool, can be used to cut recesses or grooves in any suitable material and of any desired radius within the range of the machine without change. At the same time the machine is adapted to be used for any purpose where rotary cutting tools are employed.

Although I have shown one form of mechanism embodying my invention, it is obvious that various changes and modiiications within the knowledge of those skilled Laaact in the art may be made in the details thereof without departing from the spirit of the invention, provided the means set forth in the following claims be employed.

I claim as my invention '1. In a machine the combination with a pivoted member and atool carrying member movable on said pivoted member, a manually controlled means for raising and lowering the pivoted member and the tool carrying member, and means for swinging the pivoted member uniformly through a predetermined arc in its various positions.

2. In a machine the combination with a pivoted member, a tool supporting member oscillating with said pivoted member, a support for said tool supporting member disposed below the same, and means for operating the tool, said tool supporting member being movable independent-ly of the swinging member whereby the tool describes an arc of varying radius depending upon the position of said supporting member with relation to. said swinging member.

3.4 In a machine comprising a tool, a support for said tool comprising an adjustably pivoted bar, a plate guided by said bar for supporting the tool, supporting means for adjusting said. plate rela-,tive to the pivot of the bar to coperate with the adjustment of the bar to determine the path traversed by the cutting end of the tool, and means for swinging saidl bar.

4. In a machine comprising a'vert-ically inclined tool, means for rotating said tool, a support for said tool comprising a pivoted bar and a plate, and means for swinging said plate and bar, said plate being free to fall lengthwise of said bar and independently thereof during the entire swinging movement and means for limiting the fall of said plate.

5. In a machine comprising a tool, a support for said tool comprising a pivoted guide bar, and a plate movable on said guide bar and secured to the tool, and spaced apart pivotal means below said plate supporting said plate to permit the same to slide thereo-n and confining said tool to move in a predetermined arc.

6. In a machine of the character described, the combination with a plate having its sides approximately perpendicular, and guides engaging the sides of said plate and permitting a swinging movement thereof, of a tool secured to the plate and having its axis bisecting the angle formed by the sides of said plate.

7. In a wood working machine the combination with a tool of a support for said tool comprising a plate having a pair of supported edges inclined at an angle to each other, means for rotating the tool, means for swinging the plate, a bearing for said plate comprising spaced pivotal guides engaging said supported edges, arms supporting said guides, sleeves on said arms, and a shaft engaging each of said sleeves whereby the same may be advanced and withdrawn simultaneously for changing the path of the plate.

8. In a machine comprising a tool spindle,

a support for said tool comprising a plate bearings for said plate for changing the pathof the tool, and means on said bearings adapted to engage the face of the work and center the said tool substantially as described.

10. In a wood working machine the com` bination with a tool, a support for said tool, adjustable guides for the support for determining the extent of the path of the cutting end of the tool sidewise and downward, pivotal means for swinging said support, and means for adjusting the pivoted means relative the cutt-ing end of the tool to permit a swinging thereof through the path determined by the adjustable guides.

l1. In a wood working machine the combination with a tool, a swinging support for said tool, a pivoted member about the pivot of which the support swings, means adjustable relative to the working end of the tool for determining the path of travel of said working end, a crank for swinging the pivoted member through a constant arc, a link for connnecting the crank and pivoted member means for adjusting the position of the pivoted member relative to the working end of the tool for swinging said working end through the determined path and means for adjusting the position of the crank to accord with the ladjustment of the pivoted member to maintain a uniform swing thereof.

12. In a wood working machine, a tool, a support for said tool, a pivoted member about the pivot of which the support swings, means adjustable relative to the working end of the tool for determining the path of travel of said working end, a crank operatively connected to said pivoted member for swinging said member through a constant arc, and means operatively connected with said pivoted member and crank for adjusting them simultaneously relative to Y termining the path of travel of said working end, a crank'operatively connected to said pivoted member Vfor swinging said member j through a constant arc, movable bearings -for 'the crank and pivoted member, and

means Yfor simultaneously adjusting said crank and pivoted member in their bearings and the means forA determining the path of the working end of the tool whereby the con stant swing of the crank eii'ects the required swing of the working end of the tool for the vadjusted position of the saidY means for determining the path of said working end.

14. In a wood working machine the combination with Va pivoted supportV comprising independently movable'means, of a cutting tool, bearings for said Vcutting tool secured to said support, a rack movable in guides mounted on said support, a rod operatively connected with said rack and cutting tool, a gear engaging said rack to raise and lower said tool independently of the support, and

.means for-lockingsaidtool inV its adjusted position.

Copies of vthis patent may be obtained for 15. In a device of the class described, a tool carriage free to move vertically, a tool mounted on said carriage, said carriage having bearing surfaces on opposite sides of the tool and converging toward the tool, supports disposed on opposite sides of the tool engaging said converging surfaces and means for swinging said carriage in a vertical plane while resting on said supports.

16. In a device of the class described, a tool support free to move vertically, a pair of guides for supporting said tool support, said support having a depending part projecting between said guides and adapted to be moved onto said guides and means for swinging said support relative to said guides.

17. In a device of the class described, a tool carriage free to move vertically, a pair of spaced apart supports for said carriage,

' the bearing surface thereof engaging the supports being divergent from the plane connecting the two supports, and means for swinging said carriage in a vertical plane while resting on said supports.

This spcciiication, signed and witnessed thislOth day of January, A. D., 1911.

JOHN HALTERBECK.

Signed in the presence of- HELEN M. DAMES, AMBRosE L. OSHEA.

iive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

